Osaka, Japan

Seigo Ohsawa

This inventor holds 5 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Tsubakimoto Chain Company. Active years: 2023-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seigo Ohsawa. Retrieved from https://idiyas.com/inventor/seigo-ohsawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 5 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.6

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2023-2025

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5 patents (USPTO):Explore Patents

Title: Seigo Ohsawa: Innovator in Chain Technology

Introduction

Seigo Ohsawa is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of chain technology, holding a total of five patents. His work focuses on improving the efficiency and functionality of chain systems, which are essential in various mechanical applications.

Latest Patents

One of Ohsawa's latest patents is a chain tensioner designed to simplify assembly and maintenance. This innovative device effectively dampens the motion of the plunger while reducing machining costs and the size of both the plunger and tensioner body. The chain tensioner features a tensioner body with a plunger bore, a plunger, and a biasing member that biases the plunger. The plunger is equipped with raised portions that engage with a locking member, which is held in place by a specially designed locking member holding part. This design allows for elastic deformation when engaging with the plunger's raised portions.

Another notable patent involves a chain guide, chain drive device, and transmission system. This invention aims to increase the amount of lubricating oil supplied to guide surfaces, enhancing the overall performance of the chain system. The chain guide includes an upper additional extension that extends from the sliding guide part, featuring an oil-recovery guide surface positioned opposite and spaced from the chain.

Career Highlights

Seigo Ohsawa is currently employed at Tsubakimoto Chain Company, a leading manufacturer in the chain industry. His work at Tsubakimoto has allowed him to develop innovative solutions that address common challenges in chain technology. Ohsawa's expertise and dedication to his craft have made him a valuable asset to the company.

Collaborations

Throughout his career, Ohsawa has collaborated with talented individuals such as Munehiro Maeda and Yuji Oshima. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Seigo Ohsawa's contributions to chain technology through his patents and work at Tsubakimoto Chain Company highlight his role as a key innovator in the field. His inventions not only improve the efficiency of chain systems but also pave the way for future advancements in mechanical engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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